Communication noise .a. only environmentally produced sounds that prevent the message from being transmitted. b. describes the medium over which the message travels. c. occurs only with the sender in the communication process. d. is anything that interrupts the transmission of a message.

Option (A).

Explanation: communication noise can be defined to as the influence on effective communication that influences the message transmission. The types of communication noise are physical, psychological, physiological and semantic. Noise refers to any type of disruption that interferes with the transmission of information from the sender to the receiver. Noise affect the efficacy of communication between a sender and receiver. Anything that affect the effective communication is considered communication noise.